From eaa3447fad18721459f9240a511003dfbef9cc2f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?King=20K=C3=A9vin?= <kingkevin@cuvoodoo.info>
Date: Thu, 13 Oct 2022 16:02:33 +0200
Subject: [PATCH] read color from EEPROM

---
 main.c | 35 ++++++++++++++++++++++-------------
 1 file changed, 22 insertions(+), 13 deletions(-)

diff --git a/main.c b/main.c
index 5d279dd..8df4fab 100644
--- a/main.c
+++ b/main.c
@@ -12,6 +12,9 @@
 // enable UART debug
 #define DEBUG 1
 
+// EEPROM start address
+#define EEPROM_ADDR 0x4000
+
 // pinout
 // pin to power IR demodulator (source on)
 #define IRM_ON_PIN PA3
@@ -355,6 +358,13 @@ void main(void)
 	TIM2->EGR.fields.UG = 1; // transfer all registers
 	TIM2->CR1.fields.CEN = 1; // enable counter to start PWM
 
+	// load color
+	uint8_t rgb[3]; // eyes color
+	rgb[0] = *(uint8_t*)(EEPROM_ADDR + 0); // load red color
+	rgb[1] = *(uint8_t*)(EEPROM_ADDR + 1); // load green color
+	rgb[2] = *(uint8_t*)(EEPROM_ADDR + 2); // load blue color
+	led_rgb(rgb); // set color
+
 	// configure UV LED
 	LED_UV_PORT->ODR.reg &= ~LED_UV_PIN; // switch LED off
 	LED_UV_PORT->CR1.reg |= LED_UV_PIN; // use as push-pull
@@ -399,7 +409,6 @@ void main(void)
 
 	rim(); // re-enable interrupts
 	bool action = false; // if an action has been performed
-	led_green(0x0100); // indicate we are ready
 	puts("\r\nready\r\n");
 	while (true) {
 		IWDG_KR = IWDG_KR_KEY_REFRESH; // reset watchdog
@@ -417,24 +426,24 @@ void main(void)
 			puts("\r\n");
 			if (0x80 == nec_msg[0] && 0x7f == nec_msg[1]) { // radio remote
 				if (0x04 == nec_msg[2] && 0xfb == nec_msg[3]) { // 1
-					led_red(0x8000);
-					led_green(0);
-					led_blue(0);
+					rgb[0] = 0x80;
+					rgb[1] = 0;
+					rgb[2] = 0;
 				} else if (0x05 == nec_msg[2] && 0xfa == nec_msg[3]) { // 2
-					led_red(0);
-					led_green(0x8000);
-					led_blue(0);
+					rgb[0] = 0;
+					rgb[1] = 0x80;
+					rgb[2] = 0;
 				} else if (0x06 == nec_msg[2] && 0xf9 == nec_msg[3]) { // 3
-					led_red(0);
-					led_green(0);
-					led_blue(0x8000);
+					rgb[0] = 0;
+					rgb[1] = 0;
+					rgb[2] = 0x80;
 				} else if (0x01 == nec_msg[2] && 0xfe == nec_msg[3]) { // mute
 					LED_UV_PORT->ODR.reg |= LED_UV_PIN; // switch UV LED on
 				} else if (0x12 == nec_msg[2] && 0xed == nec_msg[3]) { // power
 					LED_UV_PORT->ODR.reg &= ~LED_UV_PIN; // switch UV LED off
-					led_red(0);
-					led_green(0);
-					led_blue(0);
+					rgb[0] = 0;
+					rgb[1] = 0;
+					rgb[2] = 0;
 				}
 			}
 			nec_flag = false; // clear flag